Amino Acids (AA)

<p>Applications 3-(methyl-d3)-1H-Indole-2,4,5,6,7-d5 is the labeled analogue of 3-Methylindole (M313470), a naturally abundant pneumotoxin, found primarily in mammalian feces providing its strong fecal odor; however in lower concentrations the compound has a pleasent aroma, giving orange blossoms and jasmine their pleasing scent. It is often a component of commercial fragrances and perfumes.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Nakashima, T., et al.: Biol. Pharm. Bull., 32, 832 (2009), Xu, H., et al.: Chem. Pharm. Bull., 57, 321 (2009), Bodoor, K., et al.: J. Med. Chem., 52, 3753 (2009), Naskar, S., et al.: J. Chem. Res., 3, 174 (2009), Sollner, K., et al.: J. Agric. Food Chem., 57, 4319 (2009),<br></p>

<p>Applications (3-Methyl-2-butenyl)triphenyl-phosphonium Bromide (cas# 1530-34-3 ) is a compound useful in organic synthesis.<br></p>

<p>Applications D-Tyrosine-d2 is deuterium labelled D-Tyrosine (T899970). D-Tyrosine, the stereoisomer to L-Tyrosine (T899975), is an amino acid used in various organic syntheses for antibiotics. It is used in the synthesis of (-)-anisomycin, as well as BATSI (boronic acid transition state inhibitors) which act on β-lactamases. It has also been studied as an inhibitor of microbial growth on surfaces, reducing microbial attachment to hydrophillic glass and hydrophobic polypropylene surfaces.<br>References Li, Ji. et al.: Chin. Chem. Lett., 23, 647 (2012); Xu, H. et al.: Water Res., 45, 5796 (2011); Ke, W. et al.: Antimicrob. Agents Chemother., 55, 174 (2011)<br></p>

<p>Impurity Rifaximin EP Impurity A<br>Applications 2-Amino-4-methylpyridine (Rifaximin EP Impurity A) is an impurity of Rifaximin.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br></p>

<p>Applications 2-(3,4-Diethoxyphenyl)ethanamine is a useful intermediate in the preparation of Drotaverine hydrochloride, an antispasmodic drug arising from papaverine class of biologically active compounds.<br>References Turks, M., et al.: Rigas Tehniskas Universitates Zinatniskie Raksti, Serija 1: Materialzinatne un Lietiska Kimija, 23, 107 (2011)<br></p>

<p>Applications (4-Methylphenyl)-2-pyridinylmethanone is a useful reactant in organic synthesis.<br>References Hu, Zhiyuan, et al.: Org. &amp; Biomol. Chem., 16(31), 5653-5660 (2018);Liao, Yang, et al.: J. of Organometallic Chem., 881, 1-12 (2019)<br></p>

<p>Applications Dl-leucine<br></p>

<p>Applications 2-Methoxyethanol is used in the synthesis of 2-aminothiazoles in the treatment of prion disease (1). 2-Methoxyethanol is also used in the preparation of Rho-associated kinase inhibitors or (ROCK) inhibitors, for treatment of cardiovascular disease (2). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References 1. Li, Z. et al.: ChemMedChem. 2013 May;8(5):847-57.2. Boland, S. et al.: Bioorg. Med. Chem. Lett. 2013 Dec 1;23(23):6442-6.<br></p>

<p>Applications 4-Methyl-6-(methylamino)-1,3,5-triazin-2(1H)-one is a heterocyclic Triazine based building block useful in organic synthesis. It is related to 2-Amino-4-methoxy-6-methyl-1,3,5-triazine (A616880), which is used to synthesize pesticides.<br>References Klein, J., et al.: J. AOAC Intrnational, 86, 1015 (2003); Pang, G., et al.: J. Chromat. A, 1125, 1 (2006);<br></p>

<p>Applications 4-Chloromethyl-5-methyl-1,3-dioxol-2-one is an important reagent in the preparation of angiotensin II receptor antagonist such as Olmesratan Medoxomil (O550000). 4-Chloromethyl-5-methyl-1,3-dioxol-2-one is also used in the preparation of prodrugs of ampicillin.<br>References Ikeda, S. et al.: Chem. Pharmac. Bull., 32, 4316 (1984); Wu, T. Yaox. Xueb., 41, 537 (2006);<br></p>

<p>Applications 3-Methoxy-2',4',6',4-tetrahydroxychalcone piperidine complex (cas# 52218-19-6) is a useful research chemical.<br></p>

<p>Stability Hygroscopic<br>Applications Trigonelline-d3 HCl is deuterium labelled Trigonelline HCl. Trigonelline HCl has utility in developing site-specific system that delivers drugs to the brain. It has also been suggested as a potential anti-Alzheimer disease agent.<br>References Bodor, N., et al.: J. Med. Chem 26, 313 (1983); Makowska, J., et al.: J. Chromatogr. B 968, 101 (2014)<br></p>

<p>Applications An essential amino acid found in naturally produced peptides. Unlike its stereoisomer, L-tryptophan, it is not used in structural or enzyme proteins.<br>References Karunakaran, S.et al.: Bochem. J., 414, 343 (2008); Pallaghy, P.K. et al.: Biochem., 38, 11553 (1999);<br></p>

<p>Impurity Ranitidine EP Impurity H<br>Applications N-Methylnitroacetamide (Ranitidine EP Impurity H) is a degradation product of Ranitidine (R120000).<br>References Sharma, N. et al.: Sci. Pharmac., 79, 309 (2011); Haywood, P.A. et al.: J. Chem. Soc., 5, 951 (1987);<br></p>

<p>Applications 2-Methyl-7-methylamino-8-nitro-quinoxaline (cas# 78411-55-9) is a compound useful in organic synthesis.<br></p>

<p>Applications (R)-D-Methioninol<br></p>

<p>Stability Hygroscopic<br>Applications Isotope labelled 1,6-Anhydro-β-D-glucopyranose (A648100), an compound that have been proven to be a valuable synthon for the preparation of various biologically important and structurally diverse products (e.g. rifamycin S, indanomycin, thromboxane B2, (+)-biotin, tetrodotoxin, quinone, and macrolide antibiotics) as well as for modified sugars.<br>References Fraser-Reid, B., et al. J. Am. Chem. Soc. 106, 731 (1984); Edwards, M.P., et al. J. Org. Chem. 49, 3503 (1984); Kelly, A.G., and Roberts, J.S. J. Chem. Soc., Chem. Commun. 228, (1980); Ogawa, T., et al. Carbohydr. Res. 57, C31 (1977); Isobe, M., et al. Tetrahedron Lett. 28, 6485 (1987);<br></p>

<p>Applications N-Boc-L-cis-4,5-Methanoprolineamide is an intermediate used to prepare methanoprolinenitrile-contg. dipeptide mimetics as DPP-IV inhibitors and as antidiabetic agents.<br>References Magnin, D., et al.: J. Med. Chem., 47, 2587 (2004)<br></p>

<p>Applications L-Lysine L-Malate is used in the preparation of amino acid ionic liquids for use in food and medical field.<br></p>

<p>Stability Light Sensitive<br>Applications 2-Methyl-2-propen-1-ol has been used in the synthesis of C2-methyl-1,2-di-O-hexadecylglycerophosphocholine.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Bittman, R., Witzke N.M.: Chem. Physics Lipid, 50, 99 (1989)<br></p>

<p>Applications N-Methyltaurine Sodium Salt is used in the analysis of the changing properties of anionic surfactants and the development of new skin cleansers or soaps. It is the salt of N-Methyltaurine, a compound used in sperm cryopreservation studies. N-Methyltaurine is also used in the studies relating to effects on oxidative damage to erythrocytes via phenylhydrazine.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Pokhrel, P.K. et al.: Adv. Exp. Med. Biol., 483, 503 (2000); Miyahara, R. et al.: Fragr. J., 28, 11 (2000); Garde, J.J. et al.: Bio. Repro., 69, 602 (2003);<br></p>

<p>Applications 1-O-ALPHA-D-GLUCOPYRANOSYL-D-MANNITOL is used in the nutritional and biochemical investigations on disaccharide alcohols.<br>References Grupp, U., et al.: Nutr. Metab., 21, 63 (1977)<br></p>

<p>Applications α-Chloro-p-methyltoluene is a building block that has been used as a reactant for the preparation of 6-aminoquinolone derivatives as submicromolar hepatitis C virus NS5B inhibitors<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Manfroni, G., et. al.: J. Med. Chem., Ahead of Print (2013)<br></p>

<p>Applications A reagent used to synthesize 5-HT2A and 5-HT3 receptor ligands for use in treating CNS-related disorders.<br>References Bermudez, J., et al.: J. Med. Chem., 33, 1924 (1990),<br></p>

<p>Applications 2-amino-5-butyl-6-methylpyrimidin-4(3H)-one (cas# 4038-64-6) is a useful research chemical.<br></p>

<p>Applications Norvaline, a hydrogen analogs of an amino acid, was found to be racemates from the Murchison meteorite show. Norvaline was used in chiral separation by electrokinetic chromatography.<br>References Cronin, J., et al.: Science, 275, 951 (1997); Pizzarello, S., et al.: Geochim. Cosmochim. Acta., 64, 329 (2000); Gerabe, S., et al.: J. Chromatogr., 480, 403 (1989);<br></p>

<p>Applications 4-Methylcatechol is a potent inducer of nerve growth factor (NGF) synthesis in vitro and in vivo.<br>References Kaechi, K., et al.: J. Pharmacol. Exp. Ther., 272, 1300 (1995); Hanaoka, Y., et al.: J. Neurol. Sci., 122, 28 (1994)<br></p>